Lug-making press



J. 'J. SENGLAR LUG MAKING mass Filed April 24, 1925 4 Sheets-Sheet 1 .71mm mum I L32 11mm m F 5 INVENTOR. John J. ienglar ATTORNEY.

May 10,1927. 1,628,616

J. J. SENGLAR LUG MAKING PRESS Filed April 24. 1925 4 Sheets-Sheet 2INVENTOR.

John J: Senglar ATTORNEY.

' I 1,62 16 May 1927' J. J. SENGLAR 8 6 LUG MAKING PRESS Filed April 241925 4 Sheets-Sheet 3 lnhi Fig7 v v INVENTOR.

I John J. Sens Lar I a? w? I BY 6 75 nirg May 1927' J. J. SEN GLAR LUGMAKING PRESS Filed April 24. 1925 4 Sheets-Sheet 4 NVENTQR. John I.Senglar ATTORNEY.

Patented May 10, 1927.

JO HN J. SENGLAR, F TALLMADGE, OH

IO, ASSIGNOR 'llt') 'lll'IE IiItRIilSTONE STEEL PRODUCTS COMIANY, OFAKRON, OllillIO, A COHPURATION 0F OHICL LUG-MAKING PRESS.

Application filed April 2 This invention relatesm presses forprogressively makinglugs or the like, such as are riveted ontodemountable wheel rims for use in securing the latter on wheels, from astrip of metal of suitable form in cross-section. i

The general object of the invention is to provide a pair of relativelylino able press platens, carrying means for positioiung the worktherein,i'lleans for clamping; the work in position therein, and a plurality ofmeans simultaneously operable on the work, one to punch the bolt holefor the lug, in the worth,

another to punch out a portion of one edge of the work to provide rivetson the lug, and another to punch the lugsout of the work. a

A particular object of the invention isto PIOYltlk? an improved workclamping de vice. p

Another object is to provide aniinprored punch device for cutting anotch in an edge of a bar at an angle to said edge.

Another objeet is to provide a highly etl'ective die construction foruse in forming lugs from a bar of metal.

The foregoing and other objects are ob tained by the constructionillustrated in the accompanying drawings and described in detail below.is to be understood that the invention is not limited to the specificconstruction shown and described.

()1? the accoinpan ing drawings: Figure l is a p an of the lower platenof a press embodying the invention;

Figure 2 is a side elevation of said tress; Figure 3 is a section online 2l-3 o Figure 1;

Figure 4 is a section on line 1+4: of Fi ure 1;

iigure 5 Figure 1;

Figure 6 illustrates in plan the strip from which the lugs are beingformed at any time during operation of the press; and Figure 7 is a planof the completed lug.

The lugs, one of which is shown in l igrare 7, adapted for attachment tovehicle wheel r ms are provided with a bolt apertare 10, rivets 11, 11and a shoulder 12 for seating against the under side of the rim, thelatter accordingly being: formed onain angle, and the rivets 11 beingperpendicular to said shoulder so that the lug proper will e b do is asection on line 5 5 of 4, 1925. Serial at. 25,592,

be disposed vertically on the wheel rim and the apmture it] he A stripoi metal indicated at nigure ti) accordingly formed with the we or ionshown in l n'es El, el; and I] to be ipplied lo the lugd orinin r pressol the invention,

llrielly described, the pro-is inelrules an upper platen l t and lowerplaten ll relatively nuwahle with renot to each otheix its best 0 n in hres .l and the Work is positionml in the press h a stop plate IS onplaten ll, the plate l5 heinp adjustable longitui nally ol' the press bymeans of a screw Ill pmrnaled on platen lei-l and threadol through :1lug); 17 formed on plate .15. Nate l5 accordingly being; adiu'lted toengage the end of the bar l2 wl'iich is manually urged into the pressbetween each ru eration thereof.

For guiding the bar into proper position in the press and forclan'ipinp' it securely during; the operation (it the pr a pair ofclamping' members and 19 are mounted on platen i l, the member 19 beingarrang, all above the member l8 is slidable on p( 19", 19 and isTlOl'l'IlttlllXl'lQld separated 'l on member 18 by springs 20, 20. Asshown in Figure 3, plates 18 and 15) are formed with lmigitudinalgrooves oi the profiles respectively of the upper and lower surla of thebar 12 whereby tliey will snug fit about the bar when chnn a theircon,the grooves also serviinr to e h the bar in proper relation to thevarious lug "lorining instrunlentalities.

The first ()PQI'ttlllOlh namely puiurhing the bolt hole 10 through. thelag, is adapted to be accomplished through the chunping ll'lllb bers 18and 19 the former having an apex ture 21 through which a die 532, seatedon platen lat, projects and the latter l'iarinp: an aperture 23tl'irouoh which a punch 24, carried by platen lil, is operabh: towarddie 22. An aperture 25 is provided in platen l-flfor comluctin r slugs,indicated at Elli 'lroin die The die 22 is held in place on. platen latby a sol screw 27 and the panel: E24, is held in place on platen 13 by aclampinn" plate 98 and. screws 28;

The plates 18 and 19 are ar anpjed to be yieldingly urged togetherduring o]'ieralien oi the platens l?) and 1%l; toward. each n bymounting on clamping plate 15) a 29 containing a resilient pad 23thpreferably of rubber, the pad being of a height greater than but oflength and width less than the pan 29 and supported therein in spacedrelation to its walls by lugs 31, 31 whereby the rubber of the pad canliow laleralh when under compression, due to pressure ol platen 13 onthe'pad.

For performing the second operation of notching one edge of bar 12" toprovide rivets on the finishing clamp, the platens 13 and 14- areequipped, as shown in. Figure 4, with devices aligned 101 A tudii'iallywith respect to the above described punch and die. These devices includea die 82 including. parts 32 and 32 mounted on platen 14 and over whichbar 12 passes and which is provided with an aperture 33 in communicationwith an aperture 34 through platen 14 through which slugs, indicated at35, may pass from the press. An abutment member 36, for a purpose laterto be explained, is mounted on platen 14 with die 32, the die 32 andmember being S'CClll'Gl l in a socket 37 in platen 14 by means ol. awedge 38 engaging member 36 and urged inwardly of socket 37 by a caps-rew 39, and also by .a wedge block 57 later described.

(ln the platen 13, there is arranged a punch construction including abracket 40 formed with a tongue 41 clamped in platen 18 by a plate 42operable by screws 42" threaded into the platen 13. The bracket 40 haspivoted thereon at 43 punch 44 operable along the are of a circle bymeans of an arm 45 formed thereon and adapted to engage the abutmentmember 36 as platens 13 and 14 are moved together to cause punch 44 totake an arc-shaped out out out one side of bar 12 flush with theshoulder 12 thereon.

In order that wear of the punch 44, abutment 36 and die 32 may becompensated for to secure an accurate cutting by the punch 44, suitableshims, indicated at 46, at 47 and at 48, areprovided.

For the final operation of shearing the lugs from bar 12 the devices,best shown in Figures 1 and 5, are provided. These are arranged inalignment with the above described devices longitudinally of the press,as will be understood. On platen 14 there is arranged a three part die(Figure 1) in cluding die elements 49, 0t horseshoe shape in plan, 50 ofrectangular shape in plan, and

51 of irregular shape, such as in cooperation with the other two membersw ll complete the die opening 52. The parts 49, 50,

and 51 are seated in a socket 53 in platcir 14 and are clamped in placeagainst adjacent walls thereof by wedge plates and 53 engagedrespectively by wedges and 57 arranged in socket 53 and operablerespectively by screws 58 and 59 threaded through platen 14. Inpractice, die members 49 and 50 are subject to great wear and die memberto little. Accordingly by the three part construction, only those partsot the die which are worn need be rcmorcd and reground or replaced.

Cooperating with die elements 151, no and 51 is a punch (ill secured onupper platen 13 by a clamping plate ()1 and screws (31, (31" having ashearing edge (+2 :hapcd to the upper surface o1 bar 12 and boring acentering pin ('33 adu iled to pass through aperture 10 and rcn'iorablysecured in the punch by a set screw (l-51. Plalen 11 is formed with anaperture 5 therein through which the completed lug is conducted from thepress.

Overlying the platen 1-1- between the die 52 and the die elements 1 1'),50 and 51, there is arranged a stripper plate '70 formed so that bar 12may pass thereunder (Figure 4) between the above dies.

As best shown in Figure 1, the platen 14 is provided with a surface 66sloping downwardly from die member 49 so that the triangular slugs 67,G7 01': the metal between the lugs punched from bar 12 will slide downsurface 66 and through an aperture 68 in platen 14 from the press.

In operation, it will be um'lcrslood that bar 12 will he slid betweenmembers 18 and 19 into abutment with stop plate 1.5. At each operationof the platens, the hole 10 will be punched at point A on the bar .12{Figure 6) by punch 24- and die 22, the notch between rivets 11. will atthe same time be punched by pivotal punch member .1 .1; and die 32 atpoint B on bar 12, no operation will be performed at point C, andlinally the lug will be punched out 01 the bar by punch (30 and diemembers -19. 50 and 51 at point D on the bar 12, the resulting lug beingshown in Figure 7.

It will appear from the foregoing that three operations are performedsimultaneously at each operation 01 the press, the bar 12 being fed:lorwardly against stop 15 between cach operation, and a lug beingdclivered by the press after each operation thereof.

Modifications of the invention may be resorted to without departing fromthe spirit thereof or the scope of th. appended claims.

\Vhat is claimed is:

1. In a punch press including relatively movable platens, work clampingmeans in cluding a pair 01 plates carried by one platen, means betweenthe plates for yieldingly holding them apart, one of said plates beingadapted to be clamped onto the other by the other platen, and yieldingmeans including a resilient pad between the last mentioned plate andsaid other platen.

2. In a punch press including rclaliiwly movable platens, workclan'iping means ineluding a pair of plates carried. by one platen,means between the plates for yieldingly holding them apart, one 01' saidplates being adapted to be clamped onto the other llltl by the otherplaten, and yielding means between the last mentioned plate and saidother platen.

3. Ina punch )ress, relatively movable elements, a pivoted )llllCllcarried by one of said elements, an a ntment carried by the otherelement, and means on said punch adapted to engage said abutment as saidelements are moved together, to rock said punch on its pivot whereby thepunch is operable on the work at an angle to the perpendicular.

4. A punch press, including relatively movable platens, cooperatingpunch and die members carried by said platens, said punch being pivotedon one platen, and means on the other platen for rocking said punch onsaid pivot into cooperation with said die as said platens are movedtoward each other.

5. A punch press including a plurality of punches sin'lultaneouslyoperable 011 a single strip of metal, relatively movable memberscarrying said punches and said strip, and means for operating one ofsaid punches on the strip at an angle to another punch.

JOHN J. SENGLAR.

